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intel_mid_powerbtn: Remove misuse of IRQF_NO_SUSPEND flag

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The IRQF_NO_SUSPEND flag is used to identify the interrupts that should
be left enabled so as to allow them to work as expected during the
suspend-resume cycle, but doesn't guarantee that it will wake the system
from a suspended state, enable_irq_wake is recommended to be used for
the wakeup.

This patch removes the use of IRQF_NO_SUSPEND flags and uses newly
introduce PM wakeup APIs dev_pm_{set,clear}_wake_irq.

Cc: Darren Hart <dvhart@infradead.org>
Cc: platform-driver-x86@vger.kernel.org
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
This commit is contained in:
Sudeep Holla 2015-09-21 16:47:01 +01:00 committed by Darren Hart
parent d9a427ec81
commit daea5a65de
1 changed files with 8 additions and 2 deletions
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8
drivers/platform/x86/intel_mid_powerbtn.c
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@ -24,6 +24,7 @@
#include <linux/platform_device.h>
#include <linux/input.h>
#include <linux/mfd/intel_msic.h>
#include <linux/pm_wakeirq.h>
#define DRIVER_NAME "msic_power_btn"
@ -76,7 +77,7 @@ static int mfld_pb_probe(struct platform_device *pdev)
input_set_capability(input, EV_KEY, KEY_POWER);
error = request_threaded_irq(irq, NULL, mfld_pb_isr, IRQF_NO_SUSPEND,
error = request_threaded_irq(irq, NULL, mfld_pb_isr, 0,
DRIVER_NAME, input);
if (error) {
dev_err(&pdev->dev, "Unable to request irq %d for mfld power"
@ -84,6 +85,9 @@ static int mfld_pb_probe(struct platform_device *pdev)
goto err_free_input;
}
device_init_wakeup(&pdev->dev, true);
dev_pm_set_wake_irq(&pdev->dev, irq);
error = input_register_device(input);
if (error) {
dev_err(&pdev->dev, "Unable to register input dev, error "
@ -124,6 +128,8 @@ static int mfld_pb_remove(struct platform_device *pdev)
struct input_dev *input = platform_get_drvdata(pdev);
int irq = platform_get_irq(pdev, 0);
dev_pm_clear_wake_irq(&pdev->dev);
device_init_wakeup(&pdev->dev, false);
free_irq(irq, input);
input_unregister_device(input);